Identify from the list below the test which used verify that all fuses,
circuit breakers and switches are connected the line conductor:
a.
20. Zone protection. the industrial type
b. functional test
d.
27. IPX7 protection
d. Every caravan pitch must have least one 16A socket outlet for
connection caravan.
. protected from overcurrent
c. buried depth 600mm. RCD protection
c. only instructed and skilled people may work ‘live’. polarity test.
21. one may work ‘live’
c. Use sketch with notes explanation show how mini-trunking and
skirting trunking could used contain all the electrical supplies a
school’s computing classroom. continuity test
b.
22. everyone may work ‘live’
b. Use sketch with notes explanation show the earthing and
protective bonding arrangements the mains intake position a
230V system.365
U W
6 6
2 2
C1
L1 C1
2
C3
4
5
6
To phase supply
To phase motor
19.
26. The socket outlet must be:
a.
24. Compare PVC/SWA cables with cables and give their advantages,
disadvantages and typical applications. earth fault loop impedance
c.
23. overcurrent protection
b. protected additionally RCD
d. The Electricity Work Regulations state that:
a.
25. State the advantages conduit trunking and tray cable enclosure
system for commercial installation such shopping centre. All final circuits bathroom, both power and lighting, must have:
a. only competent people may work ‘live’
d. Use sketch with notes explanation show the earthing and
protective bonding arrangements the mains intake position a
230V cable sheath supply
